I rather would see them become Christians, but less Muslim believers would do the world some good!
Do not the Zoroastrians believe their are two gods—One good, the god of light, and one evil, the God of lies and darkness? We can guess which one Islam is.
There are those muslims (regardless of Kurds) who have or will choose to become Christians or follow Judaism.
There are also those who have, privately, become atheists as a result of seeing so much ‘religious’ conflict in that part of the world.
In the case of muslim Kurds, or those of “Iranian stock/off-shoots”, it is much easier to encourage them to follow the Z faith than any other faith.
Simple reason is that these people already are by and large very familiar with the Z faith, without consciously & conceptually knowing or understanding they are. For many of them the Z faith is an inherent part of their traditions & customs, without realizing it.
The challenge is to ensure they understand the difference between Islam and Zoroatrianism. Those “seminars” mentioned in the article serve that purpose too.
Zoroastrians are not ‘less muslim’ - they simply aren’t muslims.